Year Purchasing power parity; international dollars (Billions) 1992 1.694 1993 1.958 1994 2.418 1995 2.526 1996 2.807 1997 3.081 1998 3.177 1999 3.228 2000 2.893 2001 3.217 2002 3.365 2003 3.341 2004 3.480 2005 3.682 2006 3.759 2007 3.916 2008 3.215 2009 3.629 2010 4.072 2011 5.224 2012 5.425 2013 4.943 2014 6.594 2015 5.312 2016 5.744 2017 5.247 2018 6.067 2019 6.405